What is Tether?
Tether, the digital currency version of the US dollar USD, was launched by Tether Ltd in 2015. Developers claim that the value of the token is secured by the US dollar. The main idea of this project was to provide participants of cryptocurrency exchanges the opportunity to use a stable digital asset (stablecoin). Tether USDT is tied to the actual price of the US dollar USD.
Tether was released on the Omni Layer Protocol (platform), an add-on to the Bitcoin blockchain, and works on both the Omni Layer and on the Ethereum protocol (ERC-20 tokens)